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ARDUINO L293D Mortor Drive module
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Hall Effect Sensor Module

Key Specifications

  • Output Type:
    • Analog: Linear voltage proportional to magnetic field strength (e.g., 3.2V for low field, 4.3V for high field).
    • Digital: Clean ON/OFF signal (LOW when detected, HIGH when not) with adjustable threshold via potentiometer.
  • Operating Voltage: Commonly 3V-5V DC for hobbyist modules; industrial versions can go up to 24V.
  • Current Draw: Around 4-8mA, with power LEDs drawing additional current.
  • Sensor ICs: Often use SS49E, A3144, or 3144E linear or switch-type chips.
  • Indicators: Onboard power LED and a status LED for magnetic field detection.
  • Interface: 3-pin (VCC, GND, Signal) or 4-pin (VCC, GND, AO, DO).
  • Sensitivity: Detects either magnetic North or South pole (omnipolar) or requires specific pole.
  • Applications: Motor speed, position sensing, proximity detection, non-contact switching.

Common Module Pins

  • VCC (Power): 3V-5V.
  • GND (Ground): 0V.
  • AO (Analog Output): Raw voltage from sensor.
  • DO (Digital Output): Clean digital signal (0 or 1).
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